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LC749460W Folha de dados(PDF) 4 Page - Sanyo Semicon Device |
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LC749460W Folha de dados(HTML) 4 Page - Sanyo Semicon Device |
4 / 20 page LC749460W No.A1187-4/20 6. Built-in OSD block This function can do OSD (On Screen Display) on the image data after adjusting image quality. The amount of the expression per pixel can be selected from 16 indexes (4 bits: CLUT4) and 256 indexes (8 bits: CLUT8). The color pallet of the index can set alfa 4-bit of blending coefficient and 8-bit of green, blue, and the red. Displayed character and icon, etc. need to set the αGBR color to the color pallet and transmit the BMP data in the state of CLUT 4/8. The drawing engine is built-in, besides, it is possible not only to draw the transmitted BMP data to SDRAM but also do the rectangle drawing (including point and line drawing) and copy inside SDRAM. 7. Output/I/F/others 7-1. Matrix conversion The following Matrix conversion is possible for 2 systems after digital and analog input are selected. YCbCr to RGB YPbPr to RGB YPbPr to YCbCr RGB to YCbCr 7-2. Output format Output is possible with the following format. Digital RGB (30-bit/24-bit) Digital YCbCr (30-bit/24-bit) 7-3. Clamp control This can generate clamp signal in external LSI or in the built-in AD converter. In addition, it can generate optional pulse(“H”, “L”, “Hi-Z”) by comparing to the threshold value in the inside the LSI. 7-4. SDRAM interface This built-in SDRAM interface, the system can be made up easily by connecting 64Mbits SDRAM (512word × 32bit × 4bank) 1 piece or 128Mbits SDRAM (1024word × 32bit × 4bank) 1 piece in directly. In this case, more than“-60” speed grade of SDRAM is recommended. 7-5. External OSD interface This allows the interface with external OSD microcomputer using input pin 41 to 45 and output pin 36 to 38. It can display closed caption and teletext data. 7-6. I 2C interface/3 wire bus interface It basically controls the internal register using I 2C interface. The slave address can be a switch by controlling pin53 (I 2C SEL) according to the system. The slave address is as follows. I 2CSEL “L” “0111000+(R/W)” I 2CSEL “H” “0111001+(R/W)” A part of register can be controlled by 3wire bus interface as well. |
Nº de peça semelhante - LC749460W |
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Descrição semelhante - LC749460W |
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